I know that there is a stage of development between the ages of 2 and 5 where a child is jealous of the same gender parent. She wants to be "in love" with her dad the way you are and have the affection you do. It's a "piece" of him that she doesn't have, only you do. It takes some time for them to accept that they can't play every role to both of you. I have a son who has gone through it and I explained how nothing can take his place but that his dad and I need some of our own time, just like my son and I need some of our own time. Good luck! It will pass.